Table 1 shows one common other fuel system related problems of the 2023 GMC Terrain.
| Problem Category | Number of Problems |
|---|---|
| Other Fuel System problems |
Vehicle stalled while driving and would not restart. Strong gasoline smell present and on ground. Third occurrence. Vehicle stalled while driving at on busy road (safety issue both times). Strong raw gas smell. Would not crank afterward. Dash powered normally with check engine light. Happened previously around 27k miles in September 2025. Occurred again may 9, 2026. Occurred again today l, may 18, 2026. Vehicles is being towed to dealership again for the 3rd time.
I was driving down the hwy and all of a sudden the car went into reduced power mode and the dealership is saying it’s a high pressure fuel pump which is not covered under the standard warranty my vehicle only has 46000 miles fennigan GMC rosenberg TX.
Car reduced speed and the smell of gas filled the car. Car shut off. Check engine light came on with reduced speed. This is the second time this has happened. Gas leaked onto ground from car. Car stalls immediately while driving and does not allow you to press the gas to keep moving. Almost hit from behind on main street.
Out of nowhere and driving this morning, my engine reduced power came on. Then I started losing power in the car then it died on me once out of nowhere. I managed to make it home an hour and a half later, but that could’ve got me killed stopped by autozone since dealerships closed today and it tells me that it’s code p228c, p0089 fuel pump. And then last night my emergency service calling came on which one I looked it up so something to do with onstar and could be a module so I’m not sure what that is. And then you add on the fact all the sudden in the last 24 hours, my screen keeps going in and out are not working last week. My volume wasn’t working. I love this car, but it seems to have a lot of issues all of a sudden and I’m fixing to be at 60,000 miles which is a big problem considering warranty will be expired. I’ve already had issues with squeaking and squealing from the windows that they claim they can’t find nothing and I’ve had to listen to it for almost 60,000 miles. I had to get this car because my other car blew up on me and I can’t afford another new car. I’ll be taking it to the dealership first thing in the morning and I hope to god that something can be fixed cause we’re in one car family.
The high pressure fuel pump, the car randomly goes into limp mode and stalls and then when cranking it back up in the middle of 635 it hesitates to start, done this 3 times already.
Car reduced speed and smells of gas. Will not crank and will stall immediately and just stops immediately. Car has only 30,000 miles and it has stalled out for the second time with the same issue. The first time the car stalled on the freeway and I was almost hit from the back. This second time reduced speed and quickly shut off on a main street and was almost hit again. Car does not allow you to press the gas and coast during the incident.
1st failure. August 28, 2025. Vehicle stalled out while driving with no warning. Check engine light stayed on. Could not drive. Car towed to dealership. Scanned codes found: p0089, p00c6 and p228c. Cause: internal failure. Bulletin pertaining to this issue performed. Program of ecm per bulletin. 2nd failure. February 19, 2026 vehicle stalled out a 2nd time while driving with no warning. Check engine light stayed on. Could not drive. Towed in a 2nd time. Scanned codes found: p0089, p00c6, p228c and p2c1f. Cause: internal fault. Fuel pump power control module replacement. Fuel pump replacement. 3rd failure. March 4th, 2026. Vehicle stalled out a 3rd time while driving with no warning. Check engine light stayed on. Could not drive. Towed in again to dealership. Currently sitting at dealership waiting on repairs a 3rd time for the same thing. Wife is 76 years old and is terrified to drive this car. What if this stalls out on the freeway in traffic. Car is unsafe to drive.
While driving the fuel pump failed and started spraying gas everywhere in the engine compartment.
My GMC Terrain was stopped in traffic at a red light. When I stepped on the gas pedal to proceed, the SUV shut-down. Could not move SUV in traffic. Called police and SUV was towed. SUV towed to GMC dealer. The k111 fuel module was causing the problem. GMC dealer repair shop removed and replaced the k111 fuel module. They claimed SUV is ok. I don't trust this SUV any longer. I read of similar problems with 2022 GMC Terrain and the fuel module defect causing the SUV to shut down. This is a safety hazard to the driver and other vehicles on the highway.
While driving 40-45 mph the engine light came on and 50% loss of power was displayed on screen. Thankfully I wasn’t far from home and was in limp mode for the last 2 miles. The mileage of vehicle is 42,000 miles. The codes are reading low fuel pressure and faulty fuel pump. Any help would be appreciated as this shouldn’t be happening to this new of a vehicle.
At stop light turning right, the car stalled, cut on and cut back off, cut on and back off with about 30 cars behind me. Sputtering. On the dash board it said “engine power reduced”. I had to be pushed out a main highway by police, and thankfully my 6 month old daughter wasn’t in the back seat. I have had this car 12 days with 48256 miles on it. I’m extremely concerned with the safety of this car. And when towed was leaking gas like fluid.
Gm flier pip6071a - continued engine misfire/chugging/buck/skip under load, going up hills, trying to pass, etc. Was taken to shop January 2025 ~90,000 with these symptoms. Charged for spark plug replacement (visit 1). Taken back January 2026 ~150,000 miles, charged for ignition coil 1 and spark plugs. Immediately returned as problem persisted, spark plugs replaced (visit 3). February 6 2026, same problem as before, spark plugs replaced (visit 4). February 18 2026, currently in shop, problem persisting, trying to say it is the other 3 ignition coils, even after I requested they check O2 sensor and inspect catalytic converter.